took off the lid, IHS gone but cpu gone too?

[noktekniq]

finally took off my ihs. but when i put it back into the socket, i can't get it to boot on. the dfi mobo has 3 red lights. seems liek the cpu nis not being detected. so i tried to put the ihs back on without gluing it and put thermal paste and heatsink on top. still doesn't boot up.
is it dead?
any other way i can try before i confirm it's dead?
i don't see any cracks on the core at all.
i reseated the heatsink twice before i tried putting the ihs in between to bootup

edited! 7.22
found out the problem. i can't seem to boot with 2 rams sticks in the slot. if i only boot with one. it works perfectly fine. but i want to be able to run both my sticks. HELP